An upset of Zinedine Zidane's giants on Wednesday would

set Napoli up well for the second leg at the San Paolo, added Callejon: "The San Paolo is incredible, it's our twelfth man." But again, the odds are against Maurizio Sarri's men, who have a far poorer record in European competition compared to a 'Galacticos' side starring Cristiano Ronaldo.

Napoli have won two and lost four of their six away matches against Spanish opponents in Europe, and won none of their last four against La Liga sides.

In his time with Juventus, former France international Zidane never lost in six meetings with Napoli, scoring twice against the Azzurri.

Madrid have won eight of their 12 fixtures since drawing with Dortmund on matchday six.

Since then, they lifted the FIFA Club World Cup and set a Spanish record of 40 games unbeaten in all competitions which was ended by a 2-1 defeat at Sevilla last month.

(This article has not been edited by DNA's editorial team and is auto-generated from an agency feed.)